The 1.5 inch 90 elbow male-female is commonly used with 1.5 inch rigid pipe and 1.5 inch flexible rigid pipe. Best to use a plumbing cleaner then pipe cement to assemble. Pipe work pushes inside this part at the female end and at the male end it pushes in to a female socket.
Internal Diameter: 42 mm (female end) 48 mm (male end)
Outer Length: 86 mm
Depth / Diameter: 48 mm (femal end) 57 mm (male end)